Embeddable electrical appliance

Abstract

The present invention relates to an electrical device that can be embedded in a hole (P3) made through a wall (P), said device comprising a main body (1) extending along a longitudinal axis (X1) and having an external support face (1a) suitable and intended to bear against said external face (P1) in the embedded state of the device in said hole (P3), at least two clamping tabs (2) each having a free end (2a) and a connecting end (2b) connected to said main body (1) and return means (3) tending to bring said clamping tabs (2) back to their lowered or folded position in which each free end (2a) is suitable and intended to bear with pressure on said internal face (P2) in the embedded state of the device.The return means (3) are separate from the clamping lugs (2) and each clamping lug (2) is associated with one of the return means (3) and pivotally articulated at its connecting end (2b) on said main body (2) around a pivot axis (2c) substantially perpendicular to the longitudinal axis, each return means (3) being connected to the associated clamping lug (2) and to the main body (1).

Claims

1. Recessable electric apparatus designed to be able to be recessed in a hole (P3) formed through a wall (P) having two opposing faces, an outer face (P1) and an inner face (P2), said apparatus comprising a main body (1) extending along a longitudinal axis (X1) and being provided with an outer bearing face (1a) that is able and intended to bear against said outer face (P1) when the apparatus is in the recessed state in said hole (P3), at least two clamping legs (2) each including a free end (2a) and a connecting end (2b) connected to said main body (1) so as to enable each clamping leg (2) to move outside said main body (1) between a raised position enabling the apparatus to be inserted into said hole (P3) and a lowered position in which each free end (2a) is able and intended to bear with pressure, under the effect of a return force exerted on said clamping legs, against said inner face (P2) when the apparatus is in the recessed state to hold the latter by clamping the wall (P) between said bearing face (1a) and said free ends (2a) and return means (3) exerting said return force tending to return the latter to the lowered position thereof, the return means (3) being distinct from the clamping legs (2) and each clamping leg (2) being associated with one of the return means (3) and articulated pivotingly at the connecting end (2b) thereof on said main body (2) about a pivot axis (2c) substantially perpendicular to the longitudinal axis (X1), each return means (3) being connected to the associated clamping leg (2) and to the main body (1), each return means (3) being supported by the associated clamping leg (2) and comprising an active part (3a) mounted in the associated clamping leg (2) and an end connecting part (3b) connected to the main body (2), characterized in that the main body (1) comprises at least two bearing and sliding edges (1b), preferably having a rounded shape, each associated with one of the return means (3) and in that the end connecting part (3b) of each return means (3) is connected to the main body (1), bearing, by sliding contact, on the associated bearing and sliding edge (1b) so that, when the clamping leg (2) is moving between the lowered position thereof and the raised position thereof or vice versa, each end connecting part (3b) slides on the associated bearing and sliding edge (1b), pivoting about the latter.

2. Recessable electric apparatus according to Claim 1, characterized in that the active part (3a) is located substantially in the central or mid portion of the associated clamping leg (2) between the free end (2a) thereof and the connecting end (2b) thereof or between said central or mid portion and said connecting end (2b).

3. Recessable electric apparatus according to Claim 1 or 2, characterized in that each bearing and sliding edge (1b) is located near the pivot axis (2c) of the clamping leg (2) supporting the return means (3) associated with said bearing edge (1b).

4. Recessable electric apparatus according to any one of Claims 1 to 3, characterized in that each bearing and sliding edge (1b) of the main body (1) is associated with a cavity (1c) formed in the main body (1) at a point located between said bearing and sliding edge (1b) and the bearing face (1a) so as to enable the end connecting part (3b) of each return means (3) to be inserted in the associated cavity (1c) when sliding on the associated bearing and sliding edge (1b) and pivoting about the latter.

5. Recessable electric apparatus according to any one of Claims 1 to 4, characterized in that each return means (3) associated with a clamping leg (2) consists of at least one helical torsion or compression or tension spring (3).

6. Recessable electric apparatus according to Claim 5, characterized in that each helical torsion spring (3) comprises at least one helical winding forming the active part (3a) and extending substantially parallel to the pivot axis (2c) of the clamping leg (2) associated with said return means (3).

7. Recessable electric apparatus according to Claim 6, characterized in that each helical winding (3a) is mounted about a mandrel (2d) or in a cylindrical cavity, in order to hold the active part of the spring, which is incorporated into the clamping leg (2) and extends substantially parallel to the pivot axis (4) of the clamping leg (2) associated with said spring (3).

8. Recessable electric apparatus according to any one of Claims 1 to 7, characterized in that at least the surface of the free end (2a) of each clamping leg (2) is made from a material having a low friction coefficient.

9. Recessable electric apparatus according to any one of Claims 1 to 8, characterized in that the clamping legs (2) are made from a plastic.

10. Recessable electric apparatus according to any one of Claims 1 to 9, characterized in that the main body (1) has an overall cylindrical or frustoconical shape and / or the two clamping legs (2) are diametrically opposed on each side of the longitudinal axis (X1).

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